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Summary Homeostasis

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Summary study book Understanding Life Sciences of T. M. Thomas Isaac, S. Chetty, S. Naidoo (Chapter 8: Homeostasis) - ISBN: 9781920192150 (Matric CAPS.)

Institution
Clarendon High School
Module
Homeostasis








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T. M. Thomas Isaac, S. Chetty, S. Naidoo Understanding Life Sciences
  • 2010
  • 9781920192150
  • Unknown

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Institution
Clarendon High School
Module
Homeostasis
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Summarized whole book?
No
Which chapters are summarized?
Chapter 8: homeostasis
Uploaded on
August 15, 2020
File latest updated on
August 22, 2020
Number of pages
4
Written in
2020/2021
Type
Summary

Subjects

  • biology

Content preview

CHAPTER EIGHT

HOMEOSTASIS
DEFINITION

● The redundancy of living organisms to maintain a constant composition of
their internal environment, irrespective of changes in the external
environment.

NEGATIVE FEEDBACK




OXYGEN AND CARBON DIOXIDE
● Rate of cellular respiration increases
● More carbon dioxide releases into blood
● Medulla oblongata stimulated
● Impulses sent to heart and breathing muscles
● Heart beats faster, deoxygenated blood is pumped faster
● Breathing movements sped up by breathing muscles
● Carbon dioxide removed faster, oxygen supplied rapidly to tissues
● Levels are restored

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